<template>
  <view class="preview" v-if="currentInfo">
    <swiper circular :current="currentIndex" @change="swiperChange">
      <swiper-item v-for="(it,idx) in classList" :key="it._id">
        <image v-if="idx>=currentIndex-1 && idx<=currentIndex+1" @click="maskChange" :src="it.picurl" mode="aspectFill">
        </image>
      </swiper-item>
    </swiper>
    <view class="mask" v-if="maskState">
      <!-- #ifndef MP-TOUTIAO -->
      <view class="goBack" :style="{top:(getStatusBarHeight()+10)+'px'}" @click="goBack">
        <uni-icons type="back" color="#fff" size="20"></uni-icons>
      </view>
      <!-- #endif -->
      <view class="count">{{currentIndex+1}} / {{classList.length}}</view>
      <view class="time">
        <uni-dateformat :date="Date.now()" format="hh:mm"></uni-dateformat>
      </view>
      <view class="date">
        <uni-dateformat :date="Date.now()" format="MM月dd日"></uni-dateformat>
      </view>
      <view class="footer">
        <view class="box" @click="onInfo">
          <uni-icons type="info" size="28"></uni-icons>
          <view class="text">信息</view>
        </view>
        <view class="box" @click="onScore">
          <uni-icons type="star" size="28"></uni-icons>
          <view class="text">{{currentInfo.score}}分</view>
        </view>
        <view class="box" @click="onDownload">
          <uni-icons type="download" size="22"></uni-icons>
          <view class="text">下载</view>
        </view>
      </view>
    </view>

    <uni-popup ref="infoPopup" type="bottom">
      <view class="infoPopup">
        <view class="popHeader">
          <view></view>
          <view class="title">壁纸信息</view>
          <view class="close" @click="onCloseInfo">
            <uni-icons type="closeempty" size="18" color="#999"></uni-icons>
          </view>
        </view>
        <scroll-view scroll-y>
          <view class="content">
            <view class="row">
              <view class="label">壁纸ID：</view>
              <text class="value" selectable>{{currentInfo._id}}</text>
            </view>
            <view class="row">
              <view class="label">发布者：</view>
              <text class="value">{{currentInfo.nickname}}</text>
            </view>
            <view class="row">
              <view class="label">评分：</view>
              <view class="value rateBox">
                <uni-rate readonly :value="currentInfo.score" size="16"></uni-rate>
                <text class="score">{{currentInfo.score}}分</text>
              </view>
            </view>
            <view class="row">
              <view class="label">摘要：</view>
              <view class="value">{{currentInfo.description}}</view>
            </view>
            <view class="row">
              <view class="label">标签：</view>
              <view class="value tabs">
                <view class="tab" v-for="it in currentInfo.tabs" :key="it">{{it}}</view>
              </view>
            </view>
            <view class="copyright">
              声明：本图片来用户投稿，非商业使用，用于免费学习交流，如侵犯了您的权益，您可以拷贝壁纸ID举报至平台，邮箱513894357@qq.com，管理将删除侵权壁纸，维护您的权益。
            </view>
            <view class="safe-area-inset-bottom"></view>
          </view>
        </scroll-view>
      </view>
    </uni-popup>

    <uni-popup ref="scorePopup" :is-mask-click="false">
      <view class="scorePopup">
        <view class="popHeader">
          <view></view>
          <view class="title">{{isScore ? '评分过了~' : '壁纸评分'}}</view>
          <view class="close" @click="onCloseScore">
            <uni-icons type="closeempty" size="18" color="#999"></uni-icons>
          </view>
        </view>
        <view class="content">
          <uni-rate v-model="userScore" allow-half :disabled="isScore" disabled-color="#FFCA3E"></uni-rate>
          <text class="text">{{userScore}}分</text>
        </view>
        <view class="footer">
          <button :disabled="!userScore || isScore" type="default" size="mini" plain @click="submitScore">确认评分</button>
        </view>
      </view>
    </uni-popup>
  </view>
</template>

<script setup>
  import { ref } from 'vue'
  import { onLoad, onShareAppMessage, onShareTimeline } from '@dcloudio/uni-app'
  import { getStatusBarHeight } from '@/utils/system.js'
  import { apiGetSetupScore, apiWriteDownload, apiDetailWall } from '@/api/apis.js'
  import { gotoHome } from '@/utils/common.js'

  const classList = ref([])
  const storeClassList = uni.getStorageSync('storeClassList') || []
  classList.value = storeClassList.map(it => {
    return {
      ...it,
      picurl: it.smallPicurl.replace('_small.webp', '.jpg')
    }
  })

  const currentId = ref(null)
  const currentIndex = ref(0)
  const currentInfo = ref(null)
  onLoad(async e => {
    if (!e.id) gotoHome()
    currentId.value = e.id
    if (e.type == 'share') {
      let res = await apiDetailWall({ id: currentId.value })
      classList.value = res.data.map(it => {
        return {
          ...it,
          picurl: it.smallPicurl.replace('_small.webp', '.jpg')
        }
      })
    }
    currentIndex.value = classList.value.findIndex(it => it._id == currentId.value)
    currentInfo.value = classList.value[currentIndex.value]
  })

  const swiperChange = e => {
    currentIndex.value = e.detail.current
    currentInfo.value = classList.value[currentIndex.value]
  }

  const goBack = () => {
    uni.navigateBack({
      fail(err) {
        uni.reLaunch({ url: '/pages/index/index' })
      }
    })
  }

  // info弹窗
  const infoPopup = ref(null)
  const onInfo = () => {
    infoPopup.value.open()
  }
  const onCloseInfo = () => {
    infoPopup.value.close()
  }

  //评分弹窗
  const userScore = ref(0)
  const scorePopup = ref(null)
  const isScore = ref(false)
  const onScore = () => {
    if (currentInfo.value.userScore) {
      isScore.value = true
      userScore.value = currentInfo.value.userScore
    }
    scorePopup.value.open()
  }
  const onCloseScore = () => {
    userScore.value = 0
    isScore.value = false
    scorePopup.value.close()
  }
  const submitScore = async () => {
    uni.showLoading({ title: '加载中...' })
    let { classid, _id: wallId } = currentInfo.value
    let res = await apiGetSetupScore({ classid, wallId, userScore: userScore.value })
    uni.hideLoading()
    if (res.errCode === 0) {
      uni.showToast({
        title: '评分成功',
        icon: 'none'
      })
      classList.value[currentIndex.value].userScore = userScore.value
      uni.setStorageSync('storeClassList', classList.value)
    }
    onCloseScore()
  }

  //点击下载
  const onDownload = async () => {
    // #ifdef H5
    uni.showModal({
      content: '请长按保存壁纸',
      showCancel: false
    })
    // #endif
    // #ifndef H5
    try {
      uni.showLoading({
        title: '下载中....',
        mask: true
      })

      let { classid, _id: wallId } = currentInfo.value
      let res = await apiWriteDownload({ classid, wallId })
      if (res.errCode != 0) throw res

      uni.getImageInfo({
        src: currentInfo.value.picurl,
        success: res => {
          uni.saveImageToPhotosAlbum({
            filePath: res.path,
            success: res => {
              console.log(res)
            },
            fail(err) {
              if (err.errMsg == 'saveImageToPhotosAlbum:fail cancel') {
                return uni.showToast({
                  title: '保存失败，请重新点击下载',
                  icon: 'none'
                })
              }
              uni.showModal({
                title: '提示',
                content: '需要授权保存相册',
                success: res => {
                  if (res.confirm) {
                    console.log('确认授权了')
                    uni.openSetting({
                      success(setting) {
                        if (setting.authSetting['scope.writePhotosAlbum']) {
                          uni.showToast({
                            title: '获取授权成功',
                            icon: 'none'
                          })
                        } else {
                          uni.showToast({
                            title: '获取授权失败',
                            icon: 'none'
                          })
                        }
                      }
                    })
                  }
                }
              })
            },
            complete() {
              uni.hideLoading()
            }
          })
        }
      })
    } catch (err) {
      console.log(err)
      uni.hideLoading()
    }
    // #endif
  }

  //分享给好友
  onShareAppMessage(e => {
    return {
      title: '咸虾米壁纸',
      path: `/pages/preview/preview?id=${currentId.value}&type=share`,
    }
  })

  //分享朋友圈
  onShareTimeline(e => {
    return {
      title: '咸虾米壁纸~~~',
      query: `id=${currentId.value}&type=share`
    }
  })

  // 遮罩层状态
  const maskState = ref(true)
  const maskChange = () => {
    maskState.value = !maskState.value
  }
</script>

<style lang="scss" scoped>
  .preview {
    width: 100%;
    height: 100vh;
    position: relative;

    swiper {
      width: 100%;
      height: 100%;

      image {
        width: 100%;
        height: 100%;
      }
    }

    .mask {
      &>view {
        position: absolute;
        left: 0;
        right: 0;
        margin: auto;
        width: fit-content;
        color: #fff;
      }

      .goBack {
        width: 38px;
        height: 38px;
        background-color: rgba(0, 0, 0, 0.5);
        left: 30rpx;
        margin-left: 0;
        border-radius: 100px;
        top: 0;
        backdrop-filter: blur(10rpx);
        border: 1rpx solid rgba(255, 255, 255, 0.3);
        display: flex;
        justify-content: center;
        align-items: center;
      }

      .count {
        top: 10vh;
        background-color: rgba(0, 0, 0, 0.3);
        border-radius: 40rpx;
        padding: 8rpx 28rpx;
        backdrop-filter: blur(10rpx);
      }

      .time {
        top: calc(10vh + 80rpx);
        font-size: 140rpx;
        font-weight: 100;
        line-height: 1em;
        text-shadow: 0 4rpx rgba(0, 0, 0, 0.3);
      }

      .date {
        top: calc(10vh + 230rpx);
        font-size: 34rpx;
        text-shadow: 0 2rpx rgba(0, 0, 0, 0.3);
      }

      .footer {
        bottom: 10vh;
        background-color: rgba(255, 255, 255, 0.8);
        width: 65vw;
        height: 120rpx;
        border-radius: 120rpx;
        color: #000;
        display: flex;
        justify-content: space-around;
        align-items: center;
        box-shadow: 0 2rpx 0 rgba(0, 0, 0, 0.1);
        backdrop-filter: blur(20rpx);

        .box {
          display: flex;
          flex-direction: column;
          align-items: center;
          justify-content: center;
          padding: 2rpx 12rpx;

          .text {
            font-size: 26rpx;
            color: $text-color2;
          }
        }
      }
    }

    .popHeader {
      display: flex;
      justify-content: space-between;
      align-items: center;

      .title {
        color: $text-color2;
        font-size: 26rpx;
      }

      .close {
        padding: 6rpx;
      }
    }

    .infoPopup {
      background: #fff;
      padding: 30rpx;
      border-radius: 30rpx 30rpx 0 0;
      overflow: hidden;

      scroll-view {
        max-height: 60vh;

        .content {
          .row {
            display: flex;
            padding: 16rpx 0;
            font-size: 32rpx;
            line-height: 1.7em;

            .label {
              color: $text-color3;
              width: 140rpx;
              text-align: right;
              font-size: 30rpx;
            }

            .value {
              flex: 1;
              width: 0;
            }

            .class {
              color: $main-color;
            }

            .rateBox {
              display: flex;
              align-items: center;

              .score {
                font-size: 26rpx;
                color: $text-color2;
                padding-left: 10rpx;
              }
            }

            .tabs {
              display: flex;
              flex-wrap: wrap;

              .tab {
                border: 1px solid $main-color;
                color: $main-color;
                font-size: 22rpx;
                padding: 10rpx 30rpx;
                border-radius: 40rpx;
                line-height: 1em;
                margin: 0 10rpx 10rpx 0;
              }
            }
          }

          .copyright {
            font-size: 28rpx;
            padding: 20rpx;
            background-color: #f6f6f6;
            color: #666;
            border-radius: 10rpx;
            margin: 20rpx 0;
            line-height: 1.6em;
          }
        }
      }
    }

    .scorePopup {
      background: #fff;
      padding: 30rpx;
      width: 70vw;
      border-radius: 30rpx;

      .content {
        padding: 30rpx 0;
        display: flex;
        justify-content: center;
        align-items: center;

        .text {
          color: #FFCA3E;
          padding-left: 10rpx;
          width: 80rpx;
          line-height: 1em;
          text-align: right;
          font-size: 28rpx;
        }
      }

      .footer {
        padding: 10rpx 0;
        display: flex;
        justify-content: center;
        align-items: center;
      }
    }
  }
</style>